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Proceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167)最新文献

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A beamloss diagnostic system for CESR CESR的波束损耗诊断系统
Proceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167) Pub Date : 1997-05-12 DOI: 10.1109/PAC.1997.751096
S. Henderson
{"title":"A beamloss diagnostic system for CESR","authors":"S. Henderson","doi":"10.1109/PAC.1997.751096","DOIUrl":"https://doi.org/10.1109/PAC.1997.751096","url":null,"abstract":"A diagnostic system utilizing commercially available fast analog digitizers has been developed at the Cornell Electron Storage Ring (CESR) for capturing and analyzing transient beam behaviour preceding rapid beamloss. The diagnostic system is based on a turn-by-turn data acquisition system which records beam position information from individual bunches in CESR, as well as RF system diagnostic signals. An accompanying display and analysis package has been developed to aid in diagnosing the causes of beamloss events. Examples of beamloss mechanisms are described.","PeriodicalId":122662,"journal":{"name":"Proceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122372424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Beams for Gammasphere at the LBNL 88-inch cyclotron 在LBNL的88英寸回旋加速器上的伽马球束
Proceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167) Pub Date : 1997-05-12 DOI: 10.1109/PAC.1997.749925
D. Clark, D. Collins, R. Dwinell, A. Guy, S. Lundgren, C. Lyneis, M. McMahan, D. Syversrud, Z. Xie
{"title":"Beams for Gammasphere at the LBNL 88-inch cyclotron","authors":"D. Clark, D. Collins, R. Dwinell, A. Guy, S. Lundgren, C. Lyneis, M. McMahan, D. Syversrud, Z. Xie","doi":"10.1109/PAC.1997.749925","DOIUrl":"https://doi.org/10.1109/PAC.1997.749925","url":null,"abstract":"The new transport system from the 88-inch cyclotron to the Gammasphere facility is described. Included are discussions of the ECR sources, operation, beam diagnostics, mechanical construction, vacuum system and beam optics.","PeriodicalId":122662,"journal":{"name":"Proceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122393565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Status of the HMI-RFQ-injector HMI-RFQ-injector的状态
Proceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167) Pub Date : 1997-05-12 DOI: 10.1109/PAC.1997.749934
O. Engels, A. Schempp, W. Pelzer, H. Homeyer
{"title":"Status of the HMI-RFQ-injector","authors":"O. Engels, A. Schempp, W. Pelzer, H. Homeyer","doi":"10.1109/PAC.1997.749934","DOIUrl":"https://doi.org/10.1109/PAC.1997.749934","url":null,"abstract":"The new injector of the ISL (Ionen-Strahl-Labor, Berlin) consists of an RFQ-section and an ECR-source. The RFQ-section consists of two closely coupled VE (variable energy) RFQs. They are designed for direct injection into the cyclotron, with a small energy spread and a duty factor of 100%. The status of the project will be discussed.","PeriodicalId":122662,"journal":{"name":"Proceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122394774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Spin tracking study of the AGS AGS的自旋跟踪研究
Proceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167) Pub Date : 1997-05-12 DOI: 10.1109/PAC.1997.751266
Haixin Huang, T. Roser, A. Luccio
{"title":"Spin tracking study of the AGS","authors":"Haixin Huang, T. Roser, A. Luccio","doi":"10.1109/PAC.1997.751266","DOIUrl":"https://doi.org/10.1109/PAC.1997.751266","url":null,"abstract":"In the recent polarized proton runs in the AGS, a 5% partial snake was used successfully to overcome the imperfection depolarizing resonances. Although some depolarization at intrinsic resonances are expected, the level of the depolarization does not agree with a simple model calculation. A spin tracking program is then used to simulate the real polarized proton beam in the AGS. The results show that, due to the linear coupling introduced by a solenoidal 5% partial snake, the polarized beam will be partially depolarized also at the so-called coupling resonance, which is related to the horizontal betatron tune. The synchrotron oscillation also affect the beam polarization to a smaller extent.","PeriodicalId":122662,"journal":{"name":"Proceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122966945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A separated sector cyclotron for the production of high intensity protons 用于产生高强度质子的分离扇区回旋加速器
Proceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167) Pub Date : 1997-05-12 DOI: 10.1109/PAC.1997.749927
F. Marti, H. Blosser, D. Johnson, D. Lawton, J. Vincent
{"title":"A separated sector cyclotron for the production of high intensity protons","authors":"F. Marti, H. Blosser, D. Johnson, D. Lawton, J. Vincent","doi":"10.1109/PAC.1997.749927","DOIUrl":"https://doi.org/10.1109/PAC.1997.749927","url":null,"abstract":"We describe in this paper the design of a separated sector cyclotron (SSC) for the production of an intense beam of 230 MeV protons. The goal was an accelerator that could be used as the driver of an ISOL type radioactive ion beam facility.","PeriodicalId":122662,"journal":{"name":"Proceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114432317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Development of a broadband HOM load for the 714-MHz HOM-damped cavity 用于714mhz高频阻尼腔的宽带高频负载的研制
Proceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167) Pub Date : 1997-05-12 DOI: 10.1109/PAC.1997.753082
S. Sakanaka, F. Hinode, K. Kubo, S. Tokumoto, K. Satoh, T. Miura, T. Naba
{"title":"Development of a broadband HOM load for the 714-MHz HOM-damped cavity","authors":"S. Sakanaka, F. Hinode, K. Kubo, S. Tokumoto, K. Satoh, T. Miura, T. Naba","doi":"10.1109/PAC.1997.753082","DOIUrl":"https://doi.org/10.1109/PAC.1997.753082","url":null,"abstract":"A 714-MHz higher-order-mode (HOM) damped cavity was developed at KEK, and two cavities of this design are under operation in the Accelerator Test Facility (ATF) damping ring. Each cavity is equipped with four waveguide ports to extract HOM power. In order to achieve the very low HOM impedance required for the damping ring, each waveguide port should be terminated by a broadband, low-reflection load. We have developed a broadband HOM load for this purpose. We describe the design, construction and RF characteristics of the HOM load.","PeriodicalId":122662,"journal":{"name":"Proceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114460901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
A compact superconducting cyclotron for the production of high intensity protons 用于产生高强度质子的小型超导回旋加速器
Proceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167) Pub Date : 1997-05-12 DOI: 10.1109/PAC.1997.749926
H. Blosser, D. Johnson, D. Lawton, F. Marti, R. Ronningen, J. Vincent
{"title":"A compact superconducting cyclotron for the production of high intensity protons","authors":"H. Blosser, D. Johnson, D. Lawton, F. Marti, R. Ronningen, J. Vincent","doi":"10.1109/PAC.1997.749926","DOIUrl":"https://doi.org/10.1109/PAC.1997.749926","url":null,"abstract":"This paper reviews a study of a compact superconducting cyclotron to accelerate 200 microamps of protons to 250 MeV. The basic cyclotron structure is the same as that developed in a previous study of a 250 MeV cancer therapy cyclotron, the chief difference in the study reported here being much higher beam current (x10,000) than in the therapy cyclotron to meet desired specifications for the 'Driver' accelerator of an ISOL type radioactive beam facility. The increase in current is far below (x1/50) the axial space charge limit of the proposed cyclotron, but longitudinal space charge requires changing the extraction system from a single turn to a multi-turn system thereby increasing beam losses. Leading design uncertainties, namely the overall efficiency of the multi-turn extraction system and the distribution of radioactivity generated by lost beam are addressed herein; results indicate reasonable residual activity in the cyclotron from the perspective of customary 'hands-on' maintenance operations.","PeriodicalId":122662,"journal":{"name":"Proceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114594781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Operation Logging System using the database for the synchrotron radiation beam lines at the Photon Factory 操作记录系统使用数据库的同步辐射光束线在光子工厂
Proceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167) Pub Date : 1997-05-12 DOI: 10.1109/PAC.1997.751239
N. Kanaya, S. Asaoka, H. Maezawa
{"title":"Operation Logging System using the database for the synchrotron radiation beam lines at the Photon Factory","authors":"N. Kanaya, S. Asaoka, H. Maezawa","doi":"10.1109/PAC.1997.751239","DOIUrl":"https://doi.org/10.1109/PAC.1997.751239","url":null,"abstract":"The operation Logging System has been designed and built using the Oracle database for the twenty-two synchrotron radiation beam lines at the 2.5 GeV positron storage ring at the Photon Factory, where X-ray/VUV synchrotron radiation experiments are simultaneously carried out. The operation Logging System has a real-time capability to automatically store the database with all possible operational events of all vacuum valves/shutters and interlock signals, and all static operational data, including the pressures of the beam lines and the storage ring, and related operational data which represent the physical behaviors of the beam lines. By retrieving any combination of operational data, the system allows one to reproduce the physical behaviors that have occurred in the beam lines.","PeriodicalId":122662,"journal":{"name":"Proceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122046645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Cathodeless, high brightness electron beam production by multiple laser beams in plasmas 等离子体中多束激光产生的无阴极、高亮度电子束
Proceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167) Pub Date : 1997-05-12 DOI: 10.1109/PAC.1997.752846
R. Hemker, K. Tzeng, W. Mori, C. Clayton, T. Katsouleas
{"title":"Cathodeless, high brightness electron beam production by multiple laser beams in plasmas","authors":"R. Hemker, K. Tzeng, W. Mori, C. Clayton, T. Katsouleas","doi":"10.1109/PAC.1997.752846","DOIUrl":"https://doi.org/10.1109/PAC.1997.752846","url":null,"abstract":"The use of two crossed laser pulses in a plasma for the cathodeless production of high current low emittance electron beams is examined with fully relativistic 2-1/2D particle-in-cell (PIC) simulations. Estimates for the number of injected particles, their energy spread, and their emittance are given as functions of the amplitude and timing of the injection pulse relative to the drive pulse of the LWFA. The physical mechanism of the trapping of particles is examined based on single particle phase space trajectories in the self-consistent PIC simulations.","PeriodicalId":122662,"journal":{"name":"Proceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122179116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Status and development of superconducting cavity for KEKB KEKB超导腔的现状与发展
Proceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167) Pub Date : 1997-05-12 DOI: 10.1109/PAC.1997.753057
S. Mitsunobu, K. Asano, Takaaki Furuya, Y. Ishi, Y. Kijima, K. Sennyu, Tsuyoshi Tajima, T. Takahashi, S. Zhao
{"title":"Status and development of superconducting cavity for KEKB","authors":"S. Mitsunobu, K. Asano, Takaaki Furuya, Y. Ishi, Y. Kijima, K. Sennyu, Tsuyoshi Tajima, T. Takahashi, S. Zhao","doi":"10.1109/PAC.1997.753057","DOIUrl":"https://doi.org/10.1109/PAC.1997.753057","url":null,"abstract":"After successful test of 500 mA (Max 573 mA) electron beam at TRISTAN Accumulation ring (AR) using a prototype superconducting cavity, more than 4 superconducting cavities will be installed in High Energy Ring (HER) of KEK B-factory. The initial 4 superconducting cavities are almost same as the prototype one. The tests and results of the critical components of superconducting cavity system is described.","PeriodicalId":122662,"journal":{"name":"Proceedings of the 1997 Particle Accelerator Conference (Cat. No.97CH36167)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122195635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
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